Mercedes-Benz CLS500 Car AC Compressor Relay Replacement at your home or office.

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Car AC Compressor Relay Replacement Service

How much does a Car AC Compressor Relay Replacement cost?

On average, the cost for a Mercedes-Benz CLS500 Car AC Compressor Relay Replacement is $113 with $18 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2006 Mercedes-Benz CLS500V8-5.0LService typeCar AC Compressor Relay ReplacementEstimate$151.45Shop/Dealer Price$178.07 - $218.54
Show example Mercedes-Benz CLS500 Car AC Compressor Relay Replacement prices

What is the AC Compressor Relay all about?

In order to operate, your air conditioning system needs to compress refrigerant to pressurize it. The compressor is both electronic and belt-driven. The AC compressor relay controls the supply of electricity.

The AC compressor relay acts as a control, turning the compressor on and off when necessary. It may be located close to the compressor (under the battery tray, for instance), but it may also be located in the under-hood fuse box, or somewhere else depending on the make and model in question. However, like all other relays, this one is subject to wear and tear, and eventual failure over time.

Keep in mind:

  • The AC compressor relay is not inspected during normal maintenance, but a serious malfunction will be noticeable during AC system recharges or other similar work.
  • Without a working relay, the AC compressor will not operate.

How it's done:

  • The AC compressor relay is verified to see if it needs to be replaced
  • The defective AC compressor relay is removed
  • The new AC compressor relay is installed
  • The AC compressor relay is tested for operation
  • The vehicle is tested to ensure proper operation of the AC compressor relay

Our recommendation:

The AC compressor relay is an integral part of the system. Without an operable relay, electricity cannot be sent to the compressor, and it will not function despite having a good belt, good clutch and other components. If your compressor does not function, have one of our expert mechanics diagnose the system and replace the AC compressor relay if required.

What common symptoms indicate you may need to replace the AC Compressor Relay?

  • Compressor will not turn on
  • AC system doesn’t blow cold air

How important is this service?

Having a functional AC compressor relay is essential to air conditioner operation. While the blower motor will still circulate air in the cabin, that air will not be cold because the compressor isn’t pressurizing refrigerant. This isn’t critical for vehicle operation, but it does affect driver and passenger comfort and the ability to clear foggy windows. If the AC compressor relay has been diagnosed as faulty, have it replaced as soon as you can.

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Excellent Rating

(41)

Rating Summary
36
3
0
1
1
36
3
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Travis

13 years of experience
160 reviews
Travis
13 years of experience
Mercedes-Benz CLS500 V8-5.0L - Alternator - Monroe, North Carolina
Travis knew his stuff. I enjoyed his freindly personality. I will have him back for future work. Thanks

Chris

22 years of experience
2241 reviews
Chris
22 years of experience
Mercedes-Benz CLS500 V8-5.0L - Oil Change - Corona Del Mar, California
Chris was great. He explained everything and tried to save me as money as he could.

Terry

30 years of experience
223 reviews
Terry
30 years of experience
Mercedes-Benz CLS500 V8-5.0L - Car is making a noise - Scottsdale, Arizona
Very good 

Carlos

28 years of experience
513 reviews
Carlos
28 years of experience
Mercedes-Benz CLS500 V8-5.0L - Strut Assembly Replacement (Front) - Riverside, California
Excellent service

Excellent Rating

(41)

Rating Summary
36
3
0
1
1
36
3
0
1
1
Number of Mercedes-Benz CLS500 services completed
451+
services done by our mechanics
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